diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 437b727..1d7c298 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,7 +14,7 @@ jobs:
     - name: Cache dependencies
       uses: actions/cache@v2  # 使用actions/cache
       with:
-        path: ~/vcpkg  # 设置缓存目录路径
+        path: ./vcpkg  # 设置缓存目录路径
         key: ${{ runner.os }}-vcpkg-${{ hashFiles('**/build.rs') }}  # 设置缓存的key
         restore-keys: |  # 设置恢复缓存的key列表
           ${{ runner.os }}-vcpkg-
@@ -22,21 +22,22 @@ jobs:
     - name: Install dependencies on Ubuntu
       if: runner.os == 'Linux'
       run: |
-        sudo apt-get install -y libxi-dev libgl1-mesa-dev libglu1-mesa-dev mesa-common-dev libxrandr-dev libxxf86vm-dev
-        git clone /~https://github.com/Microsoft/vcpkg.git
-        ./vcpkg/bootstrap-vcpkg.sh
-        ./vcpkg/vcpkg integrate install
-        ./vcpkg/vcpkg install osg
-        ./vcpkg/vcpkg install gdal
+        sudo apt-get update
+        sudo apt-get install -y g++ libgdal-dev libopenscenegraph-dev
 
     - name: Install dependencies on Windows
       if: runner.os == 'Windows'
       run: |
-        git clone /~https://github.com/Microsoft/vcpkg.git
-        ./vcpkg/bootstrap-vcpkg.bat
-        ./vcpkg/vcpkg integrate install
-        ./vcpkg/vcpkg install osg
-        ./vcpkg/vcpkg install gdal
+        if (-Not (Test-Path "./vcpkg")) {
+          git clone /~https://github.com/Microsoft/vcpkg.git
+          ./vcpkg/bootstrap-vcpkg.bat
+          ./vcpkg/vcpkg integrate install
+          ./vcpkg/vcpkg install osg
+          ./vcpkg/vcpkg install gdal
+        }
+        else {
+          Write-Host "vcpkg directory exists. Skipping installation."
+        }
 
     - name: Build
       run: cargo build --verbose --release
diff --git a/README.md b/README.md
index d2cfb72..7b3ace2 100644
--- a/README.md
+++ b/README.md
@@ -29,6 +29,21 @@ You may intereted in:
 
 - [Docker Image](https://hub.docker.com/r/winner1/3dtiles)
 
+# Build
+## Ubuntu
+```
+sudo apt-get update
+sudo apt-get install -y g++ libgdal-dev libopenscenegraph-dev cargo
+cargo build --release
+```
+## Centos
+```
+
+```
+## Windows
+```
+
+```
 # Usage
 
 ## ① Command Line
diff --git a/build.rs b/build.rs
index a71d84b..e9d3463 100644
--- a/build.rs
+++ b/build.rs
@@ -18,7 +18,7 @@ fn build_win_msvc() {
         .file("./src/osgb23dtile.cpp")
         .file("./src/dxt_img.cpp")
         .file("./src/GeoTransform.cpp")
-        .compile("_3dtile");
+        .compile("3dtile");
     // -------------
     println!("cargo:rustc-link-search=native=./lib");
     // -------------
@@ -53,14 +53,17 @@ fn build_linux_unkonw() {
         .file("./src/shp23dtile.cpp")
         .file("./src/osgb23dtile.cpp")
         .file("./src/dxt_img.cpp")
-        .compile("_3dtile");
+        .file("./src/GeoTransform.cpp")
+        .compile("3dtile");
     // -------------
-    println!("cargo:rustc-link-search=native=./lib");
+    println!("cargo:rustc-link-search=native=/usr/lib/x86_64-linux-gnu");
     // -------------
     println!("cargo:rustc-link-lib=OpenThreads");
     println!("cargo:rustc-link-lib=osg");
     println!("cargo:rustc-link-lib=osgDB");
     println!("cargo:rustc-link-lib=osgUtil");
+    // gdal library
+    println!("cargo:rustc-link-lib=gdal");
 }
 
 fn main() {
diff --git a/src/earcut.hpp b/src/earcut.hpp
index a916c1d..8e8907d 100644
--- a/src/earcut.hpp
+++ b/src/earcut.hpp
@@ -2,6 +2,7 @@
 
 #include <algorithm>
 #include <cassert>
+#include <limits>
 #include <cmath>
 #include <memory>
 #include <vector>
diff --git a/src/shp23dtile.cpp b/src/shp23dtile.cpp
index 275d3da..407f20d 100644
--- a/src/shp23dtile.cpp
+++ b/src/shp23dtile.cpp
@@ -1,12 +1,10 @@
-#ifdef _WIN32
-#include "gdal/ogrsf_frmts.h"
-#endif
-
 #include "tiny_gltf.h"
 #include "earcut.hpp"
 #include "json.hpp"
 #include "extern.h"
 
+#include <gdal/ogrsf_frmts.h>
+
 #include <osg/Material>
 #include <osg/PagedLOD>
 #include <osgDB/ReadFile>
@@ -248,7 +246,6 @@ void calc_normal(int baseCnt, int ptNum, Polygon_Mesh &mesh)
     }
 }
 
-#ifdef _WIN32
 Polygon_Mesh
 convert_polygon(OGRPolygon* polyon, double center_x, double center_y, double height)
 {
@@ -372,7 +369,6 @@ convert_polygon(OGRPolygon* polyon, double center_x, double center_y, double hei
     }
     return mesh;
 }
-#endif
 
 std::string make_polymesh(std::vector<Polygon_Mesh>& meshes);
 std::string make_b3dm(std::vector<Polygon_Mesh>& meshes, bool);
@@ -381,7 +377,6 @@ extern "C" bool
 shp23dtile(const char* filename, int layer_id,
             const char* dest, const char* height)
 {
-#ifdef _WIN32
     if (!filename || layer_id < 0 || layer_id > 10000 || !dest) {
         LOG_E("make shp23dtile [%s] failed", filename);
         return false;
@@ -545,9 +540,6 @@ shp23dtile(const char* filename, int layer_id,
     //
     GDALClose(poDS);
     return true;
-#else
-    return false;
-#endif
 }
 
 template<class T> 
diff --git a/src/tileset.cpp b/src/tileset.cpp
index b08cc35..58dc218 100644
--- a/src/tileset.cpp
+++ b/src/tileset.cpp
@@ -1,22 +1,20 @@
-#ifdef _WIN32
-#include <gdal/ogr_spatialref.h>
-#include <gdal/ogrsf_frmts.h>
-#endif
-
 #include <cmath>
 #include <vector>
 #include <string>
 #include <cstring>
 #include <algorithm>
 
+#include <gdal/ogrsf_frmts.h>
+#include <gdal/ogr_spatialref.h>
+
 #include "extern.h"
 #include "GeoTransform.h"
 
 ///////////////////////
 static const double pi = std::acos(-1);
 
-#ifdef _WIN32
-extern "C" bool epsg_convert(int insrs, double* val, char* path) {
+extern "C" bool
+epsg_convert(int insrs, double* val, char* path) {
     CPLSetConfigOption("GDAL_DATA", path);
     OGRSpatialReference inRs,outRs;
     inRs.importFromEPSG(insrs);
@@ -34,7 +32,8 @@ extern "C" bool epsg_convert(int insrs, double* val, char* path) {
     return false;
 } 
 
-extern "C" bool wkt_convert(char* wkt, double* val, char* path) {
+extern "C" bool
+wkt_convert(char* wkt, double* val, char* path) {
     CPLSetConfigOption("GDAL_DATA", path);
     OGRSpatialReference inRs,outRs;
     inRs.importFromWkt(&wkt);
@@ -51,21 +50,6 @@ extern "C" bool wkt_convert(char* wkt, double* val, char* path) {
     return false;
 }
 
-#else
-extern "C" bool
-epsg_convert(int insrs, double* val, char* path)
-{
-    return false;
-}
-
-extern "C" bool
-wkt_convert(char* wkt, double* val, char* path)
-{
-    return false;
-}
-
-#endif
-
 extern "C"
 {
 	double degree2rad(double val) {
@@ -88,8 +72,8 @@ extern "C"
 	}
 }
 
-
-std::vector<double> transfrom_xyz(double radian_x, double radian_y, double height_min){
+std::vector<double>
+transfrom_xyz(double radian_x, double radian_y, double height_min){
     double ellipsod_a = 40680631590769;
     double ellipsod_b = 40680631590769;
     double ellipsod_c = 40408299984661.4;
@@ -149,19 +133,17 @@ std::vector<double> transfrom_xyz(double radian_x, double radian_y, double heigh
     return matrix;
 }
 
-extern "C" void transform_c(double center_x, double center_y, double height_min, double* ptr) {
+extern "C" void
+transform_c(double center_x, double center_y, double height_min, double* ptr) {
     double radian_x = degree2rad( center_x );
     double radian_y = degree2rad( center_y );
     std::vector<double> v = transfrom_xyz(radian_x, radian_y, height_min);
     std::memcpy(ptr, v.data(), v.size() * 8);
 }
 
-bool write_tileset_box( 
-    Transform* trans, Box& box,     
-    double geometricError,
-    const char* b3dm_file,
-    const char* json_file) {
-
+bool
+write_tileset_box(Transform* trans, Box& box, double geometricError,
+                    const char* b3dm_file, const char* json_file) {
     std::vector<double> matrix;
     if (trans) {
         matrix = transfrom_xyz(trans->radian_x,trans->radian_y,trans->min_height);
@@ -257,14 +239,10 @@ bool write_tileset_region(
 }
 
 /***/
-bool write_tileset(
-    double radian_x, double radian_y, 
-    double tile_w, double tile_h, 
-    double height_min, double height_max,
-    double geometricError,
-    const char* filename, const char* full_path)
-{
-
+bool
+write_tileset(double radian_x, double radian_y,
+            double tile_w, double tile_h, double height_min, double height_max,
+            double geometricError, const char* filename, const char* full_path) {
     double ellipsod_a = 40680631590769;
     double ellipsod_b = 40680631590769;
     double ellipsod_c = 40408299984661.4;